Download or read book Research on Criteria for Selection of Alloys and Surface Treatments for Inhibition of Tungsten Oxidation Part I Studies on the Chemical and Physical Properties of Ternary Phases Containing Tungsten and Oxygen written by Bert Phillips and published by . This book was released on 1964 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of reactions and equilibria as well as the properties of ternary phases which result, thermo physical and thermochemical properties of tungsten and tungsten-base alloy oxidation. Sealed capsules were used to equilibrate pelletized samples from which data were obtained on the condensed phase relations in the systems W-O, Ti-W-O, Ca-W-O, Sm-W-O, and Co-W-O. The system W-O up to 1700C (3090F) and isothermal sections for the ternary systems at 1400C (2550F) and 1700C (3090F) are presented. Because sealed sample containers were used during equilibration, data on the partial pressures of oxygen necessary for equilibrium and on the total pressures of the gas phase could not be obtained. Nevertheless, the positions of the oxygen isobars in the system W-O have been calculated from published thermodynamic data and extrapolations thereof, and generalities which are applicable to the ternary equilibria and which are governed by thermodynamics and the phase rule are stated. Similarly, the processes whereby changes in condensed phase assemblages occur as a function of oxidation of tungsten-metal alloys and mistures are illustrated with examples. Thhe ternary tungstates which are thermodynamically stable in the systems studied have been characterized as to x-ray diffraction pattern and melting temperature. Where possible, crystallographic information is also given. (Author).
Download or read book Research on Criteria for Selection of Alloys and Surface Treatments for Inhibition of Tungsten Oxidation Part Iii Studies on the Chemical and Physical Properties of Ternary Phases Containing Tungsten and Oxygen written by Bert Phillips and published by . This book was released on 1966 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ternary Me-W-O systems are of interest because of the potential application of ternary phases as coatings for tungsten. Binary and ternary phase relations in three basic systems, Ti, Zr, Hf, tungsten and oxygen, were studied at temperatures up to 1700C. No compound formed along the TiO2-WO3 join in the Ti-W-O system. Binary mixtures begin melting at 1240C due to a eutectic at this temperature and 64 mole percent WO3. On the TiO2-WO2 join, a complete series of solid solution formed. For ternary compositions, metallic tungsten exists in equilibrium with all titanium oxides in various binary and ternary assemblages. In the Zr-W-O system, a cubic compound (ZrW2O8) forms above 1150C, and melts incongruently at 1257C to an assemblage consisting of ZrO2 and liquid. One eutectic and one pertectic were established in the binary system ZrO2-WO3, at 1231C and 74 mole percent WO3, and at 1257C and 71 mole percent WO3, respectively. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1967 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reaction of Tungsten cobalt Alloys with Oxygen at 1 0000 and 1 1000 K written by Robert M. Doerr and published by . This book was released on 1967 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of the Air Force Materials Research and Development Program written by and published by . This book was released on 1966 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical reports published by the Air Force Materials Laboratory during the period 1 July 1964 - 30 June 1965 are abstracted herein. Reports on research conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fracturing a Deposit with Nuclear Explosives and Recovering Copper by the In situ Leaching Method written by William R. Hardwick and published by . This book was released on 1967 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Active Contracts Air Force Materials Laboratory written by and published by . This book was released on 1967 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Abstracts written by and published by . This book was released on 1965 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1969 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of AF Materials Laboratory Reports July 1965 June 1966 written by Air Force Materials Laboratory (U.S.). Research and Technology Division and published by . This book was released on 1967 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Temperature Oxidation Protection of Tungsten written by and published by . This book was released on 1969 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidation of Tungsten and Tungsten Based Alloys written by Westinghouse Electric Corporation. Research Laboratories and published by . This book was released on 1960 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Properties of Tungsten and Its Alloys written by Union Carbide Metals Company. Metals Research Laboratories and published by . This book was released on 1960 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
